x/5 + 1/2 = 6/10 -5/6 – x = 2/3 2/3 + 1/3 : x =3/5 x/5 = 2/3

2 bình luận về “x/5 + 1/2 = 6/10 -5/6 – x = 2/3 2/3 + 1/3 : x =3/5 x/5 = 2/3”

1. x/5 + 1/2 = 6/10

   => x/5 = 6/10 – 1/2

   => x/5 = 6/10 – 5/10

   => x/5 = 1/10

   => 10x = 5

   => x = 5 : 10

   => x = 0,5

   Vậy x = 0,5

   ————-

   (-5)/6 – x = 2/3

   => x = (-5)/6 – 2/3

   => x = (-5)/6 – 4/6

   => x = (-3)/2

   Vậy x = (-3)/2

   ————-

   2/3 + 1/3 : x = 3/5

   => 1/3 : x = 3/5 – 2/3

   => 1/3 : x = 9/15 – 10/15

   => 1/3 : x = (-1)/15

   => x = 1/3 : (-1)/15

   => x = 1/3 * (-15)

   => x = – 5

   Vậy x = – 5

   —————

   x/5 = 2/3

   => 3x = 5 . 2

   => 3x = 10

   => x = 10/3

   Vậy x = 10/3

   $# ????????????????????$

   Trả lời
2. x/5 + 1/2 = 6/10

   => x/5 + 1/2 = 3/5

   => x/5 = 3/5 – 1/2

   => x/5 = 1/10

   => x =$\dfrac{5.1}{10}$ 

   => x = 5/10 = 1/2

   Vậy x=1/2

   ——-

   -5/6 – x = 2/3

   => x = -5/6 – 2/3

   => x = -3/2

   Vậy x=-3/2

   ——-

   2/3 + 1/3 : x = 3/5

   => 1/3 : x = 3/5 – 2/3

   => 1/3 : x = -1/15

   => x = 1/3 : (-1/15)

   => x = 1/3 . – (15/1)

   => x = -15/3

   => x = -5

   Vậy x=-5

   ——-

   x/5 = 2/3

   => x =$\dfrac{5.2}{3}$ 

   => x = 10/3

   Vậy x=10/3

   ~~Hok tốt~~

    

   Trả lời